I have temporarily set aside trying to work on the bottom bracket of the clunky bike. Next repair session I'm going to adjust the shifters on my bike! I'll keep you posted.
I found a great website www.parktool.com that walked me through how to adjust my front derailer. I learned about derailer positioning, H and L screws, and what this thing does!
My wife's bike has friction shifters. I'm thinking about replacing them with click shifters next.
I started this blog to share my transformation from math nerd to math nerd who loves to share math with young people. I teach high school in Hanoi, Vietnam. Your comments are always welcome.